BMW Business cassete
 

Hello
I have a problem with autoradio Becker original from BMW,the problem is that i can t strengthen or becalm sound and also i can t strengthen or becalm sound on the on the steering wheel,so first i change potentiometer and still is the same,i can turn on or turn off but i can t regular the sound,so anybody have the same problem or advice what i can do?
Many thanks....

re bw
 

hello! more info? is there any sound even slow. if not, try to change audio power amplifier. may be it's blocks the sound.

There is no sound....that autoradio working fine till one moment,then start problem with potenciometer when you try up or down he doesn t do it ,just go to the most powerfull ....and after that there is no sound nothing but radio works fine except no sound....

well! just put ur hand under the pins of the power amplifier with speakers connected. if u heard a bf in the speaker that's mean that the ic is good. if not, test for 12v (power suply) on the circuit. if it's ok just change the ic power amplifier. good luck.